Answer:
Self-reflection.
Step-by-step explanation:
Taking into account the dictionary entries of the words "Intro" and "-spect" as given in the question, we can easily deduce that it has something to do with inward reflection or self-assessment. And with the general knowledge of the practice of yoga, we can also infer that it has to do with some inward inspection, something that involves self-thoughts and reflection process.
So, the word "introspection" means self-reflection. This means that yoga helps in meditation and inward assessment of oneself, in one's thoughts and internally.