The tatra sabda artha jnana vikalpaih sahkirna savitarka samapattih sutra states about the various kinds of associative relations between the sadhaka`s partially or totally purified attention and some other person or force. It can be a person or force residing in his psyche or one that is external to it. When that relation happens with the analytical organ being operative, then it can be called deliberate association.

tatra there
sabda word
artha purpose, aim, meaning
jnana knowing, knowledge, intelligence
vikalpaih an option, imagination, the act of allowing a rule to be observed or not as one pleases, surmise, the carrying on of a
transaction upon stipulated terms
sahkirna poured together, mixed together, strewn, intermingled
savitarka becoming totally engrossed, thoughtful
samapattih transformation

At this stage, called savitarka samapatti, the word, meaning and content are blended, and become special knowledge.

In the refined state of consciousness, words and their meanings are simultaneously and tunefully coalesced with understanding, so that consciousness becomes enwrapped in a new kind of knowledge. This is savitarka samapatti.