Unlocking Ki

Unlock Ki
First, you spend a skill point to level Ki Unlocked. After some time you will gain mastery rank 5 which will unlock the Basic Ki Awareness Tree.

At level 35 mastery in Ki Unlocked you will gain access to Blast and a new skill tree, Basic Effusion. At level 75 Ki Unlocked you then gain the Basic Circulation Skill Tree.

Ki Awareness
At Ki Awareness level 10 you will unlock Study other to expedite learning Ki techniques from others assuming they have more skill than you and are using Ki skills. This skill is also factored into when you unlock other skill trees later on.

Basic Effusion
At level 25 this will unlock beam

Basic Ki Control
This is unlocked through a combination of level in Ki Awareness and Unlock Ki generally referred to as "Control Mastery level."

This tree unlocks Power Control at rank 5 and gaining mastery levels in this tree is gained via remaining above 100% of your Ki.

Control Mastery
This is a mastery tree that factors in your other Ki skill trees to ascertain how much control and experience you have with using and controlling Ki.