The search for meaning can only be started inside. Only our own inner experience will give us the answers we are looking for. We have to practice by going inside.
What is Meditation?
Simply put, whatever we focus our attention on is what we are meditating upon. That is why meditation is neither positive nor negative, but rather it depends much more on the object of our attention. Ever since birth our attention has been focused on the outside world as we have experienced it through the five senses.

Since the material world is in a constant state of change, our condition reflects this instability and uncertainty physically, emotionally or mentally. As a result, we experience different degrees of restlessness and rest, sickness and health, fear and contentment, hatred and love etc. This constant play between the negative and positive (duality) is the cause of suffering.
By withdrawing our attention from the changing material world and focusing within on the inner Light and inner Sound of God (Source, Over-soul, Higher Self, etc.), who is the source of all creation, we automatically absorb qualities and attributes of the divine: love, peace, compassion, joy, etc. With regular and sincere practice, we learn to rise above body consciousness towards this highest state of being.
This method is not new. Since the beginning of time, there has always been a competent living Master on Earth. He activates this connection by instructing the sincere seeker on how to meditate; helping and empowering the spiritual aspirant during the initiation to experience consciously, for the first time, the Oversoul in its living aspects: the inner Light and the inner Sound.
“These references to light and sound are not figurative but literal, referring not to the outer illuminations or sounds of this world, but to the inner transcendental ones. This transcendental Sound and this transcendental Light are the primal manifestations of God when He projects Himself into creation. In His Nameless state He is neither light nor darkness, neither sound nor silence, but when He assumes shape and form, Light and Sound emerge as His primary attributes.”
The Crown of Life, Sant Kirpal Singh
[The Crown of Life and other books by Sant Kirpal Singh are available as free PDFs at this link.]

How do we benefit from meditation on inner light and sound? The meditation on inner light and sound is a direct way to God and fills us with sweetness, love, peace, wisdom, light and life. Everyone has God within, and the connection given by a competent Master is freely available to all.
“If your eye is single your whole body will be full of Light.”
Matthew 6:22
Through this practice of meditation on the inner light and sound we can come to know who and what we are and why we are here, thus fulfilling the purpose of life. To connect us again with that highest source of knowledge we need the help of one who is himself connected with it.