Ajahn spoke to us on the impermanence of thoughts in our meditation. Thoughts arise and then they pass. Just let them go. We know that, in life, nothing is permanent, things happen then they pass. So it is with our meditation. It doesn't matter if it's metta, breath, counting or a mantra the thoughts will arise and then pass. What matters is that we don't latch onto them, just let them go and return to our meditation.
Ajahn then asked the group which meditation they'd like to do. We chose body contemplation or body sweep and then moving to a breath meditation. Ajahn then reminded us that it isn't so much the method of meditation, it's more that our mind changes over time as we practice. The more we meditate the more relaxed we become.