Meditation is not just a Buddhist thing, but forms a part of other religions. Different types of meditation techniques are available from different groups. Even within Buddhism, some traditions focus on one type of meditation over another. Meditations typically fall into one of three types:
1. Mindfulness meditation: Concentration on breathing, a physical object such as smoke from incense, or a visualization of person or object. This type of meditation is a focus of the Theravadin schools of Buddhism but is also intrinsic to Mahayana schools. As well as the wonderful relaxation, the mindfulness leads to greater concentration, self-awareness, and is a great way of take a step back from the busyness of your life.
2. Analytical meditation: Investigation into a subject, this can be like lecture to yourself or vizualising a situation and walking through that situation. Using the concentration developed through mindfulness meditation, deep analysis to gain direct realizations.
3. Placement meditation: Based on the analysis some insight or conclusion arises. Soak in the feeling during the placement meditation.
As you have found from your experience, meditation is not just a Buddhist thing. Different types of meditation techniques are available from different groups. Even within Buddhism, some traditions focus on one type of meditation over another.