Yogi: When thinking happens during meditation, the mind becomes tense.
Sayadaw: Thinking is not a problem – hold the idea that thinking is nature.
When we’re mindful, we can know that there is thinking. If we’re not mindful, we don’t know that we’re thinking.
Why are we mindful? It’s because we want to know what is going on in the mind. Why should it be a problem now that we know that there is thinking? It only becomes a problem if we intentionally continue to think.
It’s not a problem that thoughts come and go because that’s the function of the thinking mind.