He thought within himself - He reasoned or inquired. He was anxious and perplexed. Riches increase thought and perplexity. Indeed, this is almost their only effect - to engross the thoughts and steal the heart away from better things, in order to take care of the useless wealth.
No room - Everything was full.
To bestow - To place, to hoard, to collect.
My fruits - Our word “fruits” is not applied to “grain;” but the Greek word is applied to all the produce of the earth - not only “fruit,” but also grain. This is likewise the old meaning of the English word, especially in the plural number.