BHAKTI help?

you can go back, and you will anyway so you can accept the mission for the growth egg anyway. So just go back when you can to collect, its a lot of good stuff you can sell too.

The items that Bhakti gives you are mainly premiums, that can be sold for over 450,000 Gil total. To obtain all of these items at once, you must walk 10,000 steps, upon doing this and talking to Bhakti, you will also recieve the Pulsian Pioneer trophy.

I'll just answer all your questions you have at this point.

The 5 items are scattered in Oerba.
4 of the 5 can be found by searching red spots (yellow circles on map)
The fifth item can be found by killing a vampire. (a cieth)

Pulsion pioneer can be received by walking over 10000 steps (which i think you have done) and talk to Bhakti.
It gives 3 Platinum Ingots that sells 150.000 gill each and other junks.
And no, you can't see how many steps you have taken.

At the Steppe, you will see a circle of Cieth Stones. Complete them all and all oretoises will change to Long Gui and Shaolong Gui. Shaolong Gui is the only enemy that drops Dark Matter and defeating the Long Gui will earn you the Adamant Will trophy.

Hope that answers all your questions.