Om shanti. It is not necessary to get lost in thought on any subject. The things that need to remain in our awareness now are simple:
1) Who am I?
2) Who is mine?
3) What do I need to do now?
The soul is very tiny. The soul is light. However, thinking a lot makes a soul heavy. We have to create such beautiful and subtle vibrations that they reach others. We are hearing the news of one soul or another leaving the body nearly every day. Even if someone is unconscious in hospital, my work is to create such vibrations that reach that soul… Today I may be sitting in my body but tomorrow…? There is no guarantee for tomorrow.
So perform as many elevated actions as you wish. Perform good karma through your thoughts, words and actions. Since we have to perform activity as long as we are alive, we should make those actions beneficial.