I have attested that meditation, in and of itself, does not bring spirituality. However it is essential to walking in the spirit which does bring spirituality.
The following can be found in Gilbert Carpenter's "Watches, Prayers and Arguments" given to students by Mary Baker Eddy:
"I ask you to to keep a time for meditation every day. Ponder in thought your infinite, harmonious, Christ-expressing self-hood and claim it as you. Drink in its perfection, its moral beauty, its integrity, worth, its unspeakable safety; all the truth and beauty of God's creation is yours and you. Enjoy it in sincere prayer and thanksgiving. Preserve your human sense of yourself rightly by dwelling in a definite treatment every day, within the sanctity and integrity of your real self-hood.
In that hour of prayer, discard all your sense of self-hood - that is involved in the belief of birth, heredity, association, time, decay, death. By the grace and authority of God close your thought firmly against the interference of mortal beliefs. Hold yourself open to the plan of God and closed to the plots of satan. Rise into the spiritual forces of your own being and destiny.
This magnificent spiritual exercise of treating yourself in devoted prayer and praying for yourself will keep you in the secret place which is unknown to the senses and open to all heaven holds for you. And safe! The secret place of right understanding of yourself - Himself reflected - is as safe as eternity."