I've heard that saying before. It trips off the tongue but in the religion and philosophy that appeals to me we don't say 'belief' or 'proof' in connection with survival after death. We can't provide proof of survival but for some seekers mediumship provides evidence of it. Those fortunate enough to hear from a loved one may find it is their personal proof and they may need nothing more to free them from the despair of losing a loved one. My personal frustration remains that comparatively few find this personal proof. Sceptics have to find their own pathways and although they are not excluded from finding evidence being strongly sceptical may effectively prevent it happening.