Das Lakshan (Dash Lakshana) refers to the ten supreme virtues or dharmas observed during the festival for Digambar Jains. The standard list is:

1) Uttam Kshama — Supreme Forgiveness 2) Uttam Mardava — Supreme Humility 3) Uttam Arjava — Supreme Straightforwardness 4) Uttam Shaucha — Supreme Purity 5) Uttam Satya — Supreme Truth 6) Uttam Sanyam — Supreme Self-restraint 7) Uttam Tap — Supreme Austerity 8) Uttam Tyag — Supreme Renunciation 9) Uttam Akinchanya — Supreme Non-attachment 10) Uttam Brahmacharya — Supreme Celibacy

Today’s specific virtue depends on your local calendar and which day of the Dash Lakshan Parva you are observing. Each day is dedicated to one of these virtues in order, and communities may start on slightly different dates. To know exactly which virtue is being emphasized today in your area, check your temple or community calendar for the current Dash Lakshan Parva day.

You can read more about the ten virtues and how they are practiced in the Dash Lakshan Parva here