As per Bhagavad Gita meditation technique that needs following is indulging in contemplation (chintan). We cannot understand Bhagavad Gita just by reading through literally. No wonder how many times one reads Bhagavad Gita one is not able to understand a word of it.
Contemplation (chintan) initially seems very difficult but is not impossible to practice.
Contemplation is needed to reach the hidden underlying cosmic truths of life contained in sacred texts of Bhagavad Gita and other scriptures of different religions of world. The jnana wisdom contained in Bhagavad Gita is necessitated to cut darkness of ignorance within.
Through path of bhakti yoga and karma yoga alone one cannot reach God in present Kali Yuga, Dark Age. Following path of jnana yoga seriously and sincerely is the only way to reach God. Indulgence in jnana yoga demands our indulgence in contemplation (chintan). There is no other method of meditation that could land a seeker in the domain of God Almighty.
How difficult indulgence in contemplation is can be realized from the fact that in last about 150 years amongst 7 billion people existing world over only Sri Ramakrishna Paramhansa and Maharshi Ramana finally succeeded in reaching God in their lifetime. Swami Vivekananda also could have reached God but he refused to do so under able preceptorship of Sri Ramakrishna Paramhansa, his spiritual master. Goal of Swami Vivekananda always was community service.
Before we think of indulgence in spirituality or Bhagavad Gita we must master the delicate art of contemplation.
My indulgence in contemplation started around five years of age when I fell bitterly sick. The only doctor in the town bid goodbye and said to my parents, if I survived next 24 hours I would live. At that young age I did not understand what life was all about but I remember one thing distinctly. My mother must have liked me very much. She wanted me to live.
She made me cling to her body around the clock like a monkey. She was just not prepared to let me go. In the night also she slept by my side. In the night in subconscious state I could see myself falling very fast into a deep endless pit. No matter how best I tried I kept falling. From nowhere I started praying to God that I wanted to live. And if I lived I would serve entire mankind all the time.
In the morning when I opened my eyes, I found my mother looking at me happily. I had survived. I narrated the incident to my mother. She understood nothing of it but I inherently realized that it had something to do with willpower. And thus started my journey towards God! I just wanted to see and meet God in this very life.
31 years of indulgence in yoga meditation, at 37 years of age I finally realized self, realized god.