Usually when a beginner enters into a spiritual path, he becomes a victim to laziness. Meditation is something new to him and he may not get a satisfactory result all at once, or he may not have the necessary patience. So it is necessary for him to discipline himself as quickly as possible. But for one who has already tasted some inner food — inner Light, Peace or Bliss — it is not necessary to go through this rigorous discipline because meditation has become spontaneous. While he is walking, while he is doing office work, his mind is on God, he is meditating on God. While he is talking to a person, only his mouth is functioning but his mind is somewhere else.
In your case you are the best judge. When you start to meditate, what happens? If your mind roams, then you have to be very careful. If your mind does not roam, if you know that you can hold the reins, then it is not at all obligatory to sit in the lotus posture while you meditate.From:Sri Chinmoy,Meditation: humanity's race and Divinity's Grace, part 1, Agni Press, 1974
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