What I find useful is a meaningful mantra (repeated silently in the mind). When I'm out in the hills or fells it is a gateway to 'the other place' and during the day it helps me stay grounded , especially when at work. Another ritual I find useful is every morning on the way to work I stop at the beach and pick up a pebble and keep it in my pocket. During the day I hold it to remind me of 'the other place' - the next day I replace the pebble back on the beach and pick up another one. For me ritual is a practical way of keeping focus on what is important, it's all to easy to get lost in the world and overwhelmed by negative energy.