"The boundaries we cross ..."

"The boundaries we cross are not always physical - travel involves an internal journey as well as an external one, as we discover more about ourselves.
When we travel we come up against the boundaries inside us: our prejudices, our limits, our willingness to understand and our ability to empathise." - Maureen Wheeler

Ceramic glazed tile -   Gardens of the 17th century Palace Marquês da Fronteira, Lisboa

The16th century Chapel of bones, Évora, a helpful place (it is said) to meditate on the transience of material things in the presence of death.
The message above the chapel door reads "We, here lying bones await your bones to join us".