(6.24) Thought is spiritual and will correlate with its object and bring it into manifestation.
“Spiritual” refers to the alchemical nature of concentrated thought.
(6.23) A recognition of this perfection–first mentally and then emotionally, results in a manifestation of perfection.
Mental refers to knowledge (whatever we visualize is understood as knowledge). Emotion is applied knowledge to the degree that we have allowed the knowledge of a concept to impact how we feel.
The “truth” of knowledge is irrelevant in the process of mental chemistry. It is the responsibility of conscious mind to discard thoughts/visualizations that are unsupportive of our ideal state.
(6.22) Man is a spiritual being and this spirit must, necessarily, be perfect.
The reason that subconscious mind does not discriminate “right” from “wrong” with regards to our thoughts/visualizations is because the subconscious gives the conscious credit for taking this responsibility. In this context, “will” is the project manager and is responsible for deciding how attention is to be directed. The subconscious acts upon the directed attention. It does not question the validity or morality of conscious mind, it merely acts on the “orders” of conscious mind which are given when we direct our attention.
(6.21) Sickness may be eliminated by placing ourselves in harmony with natural law, which is omnipresent.
We place ourselves in harmony with natural law by realizing that the thoughts of others affect us.
(6.20) The result of a harmonious mental attitude is harmonious conditions in life.
Our attitude towards the conditions we encounter determines how these conditions will affect us.
(6.19) The result of a change in thought is a change in conditions.
We respond or react to conditions based on how we form thoughts with regards to these conditions.
Aperture of Brahma 