med·i·tate 
/ˈmɛdəˌteɪt/ verb
med·i·tates; med·i·tat·ed; med·i·tat·ing /ˈmɛdəˌteɪt/ verb [no obj] : to spend time in quiet thought for religious purposes or relaxation
▪ He meditates for an hour every morning.
▪ He meditates for an hour every morning.
meditate on/upon [phrasal verb]
meditate on/upon (something) : to think about (something) carefully
▪ She meditated on whether or not to return to school. ▪ He was meditating upon the meaning of life.
▪ She meditated on whether or not to return to school. ▪ He was meditating upon the meaning of life.
