There are many different types of meditations. There is one type, where we focus on silence, emptiness, try to turn off our mind, to calm it down, what can be pretty difficult. There is also a meditation type, which has a specific topic, a focus what can be used to keep our mind busy. Both types of meditations are about concentration, focus and paying attention. There are some people, who can focus more easily, if they are being led during the meditation, or listening to some music. There are also those, who can meditate on their own rhythm. Meditation is not a one-time activity, it is a daily routine, a habit we practice every day. You can meditate on your own, or you can group together and meditate on a common purpose, common cause.