To be travelling by bus can be interpreted in more than one way. Literally the omnibus is for all and, therefore, signifies the Greater Good. Also a bus suggests a spiritual journey which must be paid for in some way. We may be experiencing the need to act as an individual, undertaking our own 'journey' while at the same time belonging to a group with a common purpose. Travelling on a bus suggests that we are coming to terms with the way we handle group relationships, and the new directions we need to take in company with others. You might like to consult the entry for Transport.