Monks who follow the Way of the Inner Beast channel their ki through an instnctive kinship with animals, both living and long-since passed. Embracing this deep primal connection, they outwardly manifest their own bestail form, until ultimately their soul becomes intertwined with a familiar-like spirite, which guides and protects them on their path.

Bestial Aspect

when you choose this tradiditon at 3rd level, you learn a meditative stance cabaple of awakening your inner beast. as a bonus action you can spend 1 ki point to assume this stance, rendering your body immobile as you manifest the ofrm of agreat beast around yourself.   You control this form as if it were you, and you detrmine its appearance each time you manifest it. This form lasts for 1 minute and it ends early if you die or you choose to end it as a bonus action.

While in this form you retain your statistics, with the following changes:

• Your creature type is beast, and your size is large.
• Your AC equals 10 + your proficiency bonus + your wisdom modifier.
• You gain a number of temporary HP equal to your proficiency bonus + your wisdom modifier. the THP only stays while in beast form.
• Your martial arts die increases by one size --from 1d4 to 1d6 for example-- .
• You can make unarmed strikes with your form's natural weapons (claws, horns, bite)
• you cant cast spells that require S,M components.
• you can't interact with any items or equipment you have.

Animal Whisperer

Beginning at 3rd level you can cast the speak with animals spell but only as as ritual. In addition you have advantage on wisdom (Animal handling) and charisma made to interact with beasts, as well as intellegnce checks made to recall information about them.

Mystic Companion

When you reach 6th level, a kind bestial spirit takes a liking to you and starts following you around. The spirit takes the form of any beast you choose. It doesn' have any turns or actions. 

• You can temporarely dismiss the summon and make it reappear as an action.
• as a reacon you can make the summon absorb an amount of damage equal to double your monk level, after the summon disappears and reappears after a short/long rest.

Spiritual Messenger

Starting at 6th level, you can use your action to send your bestial spirit to deliver a message, as if by the animal messanger spell. It returns to you after it delivers your message or it doesn't reach its destination within 24 hours.

Boundless Forms

Starting at the 11th level you can spend any number of ki points when you use your Bestial Aapect to extend its duration by 10 minutes for each ki points spent.. In addition each time you manifest your Bestial Aspect, you can choose one of the additional benefits.

    Beast of the Air. You gain flying speed equal to your walking speed, and you have advantage on (perception) checks that rely on sight.

    Beast of the Land. You gain additional temporary hit points equal to your monk level. You can also choose to become huge instead of large, while huge your unarmed strikes deal double damage and reach up to 10 feet.

    Beast of the Sea. You have a swimming speed equal to your walking speed. In addition, you and friendly creatures within 10 feet of you can breather underwater and suffer no penalties of underwater combat.

Ever-Abiding Spirite

By 17th level, you have learned to channel a fragment of your ki into your bestial spirit, temporarily giving it material form. once on each of your turns, immediately after you spend 1 or more ki points as part of your action or bonus action, you  can direct the spirit to move up 60 feet and take one of the following actions as part of the same action: Help, Search, Use an Object. If it takes the search action, you momentarily perceive through the spirit that uses your WIS and INT stat. It returns to your side after the end of your turn.

Alternatively, instead of using one of the above actions, you can spend 1 ki point to direct the spirit to Attack a creature you can see within 60 feet of you. Make a melee spell attack against the target using your WIS modifier for the Attack roll. you are proficient with this Attack, and it deals force damage equal to two rolls of your martial arts die + your WIS modifier to a hit.