Easily done in combination with the "16 trials" trophy.
Complete story mode with every character and they should be levelled up to level 8. Some in 2 battles, some have 4 battles. Each story mode rund shouldn't take longer than 3-4 minutes including cut scenes (which can be skipped).
Completing the story mode with every character (the original 16, no DLC required) will net you this trophy as well as the "The 16 Trials" trophy.
The The 16 Trials trophy in Street Fighter V worth 26 pointsSo you wish to learn Yoga? If that is truly the case, then first you must complete the Character Story with all characters. There is great merit in walking each of their individual paths.