The bell is an ancient charm against the powers of destruction and ‘bad’ spirits and is used to clear an atmosphere. A bell in dreams may forewarn us of approaching spiritual danger.
Psychological / Emotional Perspective:
Bells can indicate the conscience and our need to seek approval from others. It may also indicate that we have a desire to communicate with someone who is distanced or estranged from us.
Everyday Material Aspects:
Traditionally, to hear a bell tolling in a dream was to be warned of disaster or of a death. While that meaning is less prevalent now as there are more efficient ways of communication, a bell in a dream (such as a door bell) does warn us to be on the alert.